Little is known of his personal life. Two dates can be cited: in 1326, he was granted a license to hear confessions in the diocese of Hereford, and in 1352, that license was granted to another Dominican, presumably after Bromyard's death. There is evidence in his works that he had served in the diocese of Llandaff in South Wales, and he shows familiarity with customs and circumstances in France and Italy. But because the Dominicans were an international order with lively internal communication, this cannot be taken as proof that he had travelled abroad. He was evidently trained in canon law, perhaps at Oxford.
He spent most of his career at the newly founded Dominican priory at Hereford. The Dominicans had been fighting for a foothold here for eighty years against the resistance of the Dean and Chapter, before they were finally established under the patronage of Edward II in 1322. Bromyard must therefore have been among the first friars to join the fledgeling priory. In an age when manuscript books were prohibitively expensive, it is likely that he embarked on the task of compiling preaching aids as a means of providing the priory with a library to support its preaching mission. The sheer volume of his work suggests that it may well have been produced by a collaborative process involving the other friars at the Hereford priory, with Bromyard acting as editor in chief.
Bromyard was a pioneer or early adopter of new techniques in the organization of information. Each of his surviving works is provided with an alphabetical index. He employs standardized divisions of his texts, and uses them for systematic cross-references.
As aids to preaching, his works included all manner of preachable material according to the homiletic practice of the time: exempla, authorities from the church fathers and bible as well as from classical authors, natural lore, proverbs and verses (some in French or English), etc. He uses "scientific knowledge" (natura ratione) to explain natural phenomenon such as "rain" taking away the mysticism of "acts of God". These explanations are apparently drawn from Greek and Arab ancient texts. (Bromyard: Summa Praedicantium, De Natura Ratione). He was particularly fond of Canon law, devoting the Tractatus iuris to expounding Christian doctrine and morality almost exclusively by means of citations from legal texts. He engages in occasional political commentary on problems in English society, and even criticises abuses in his own Dominican order.
Bromyard was one of the most influential preachers of the 14th century in England. His Summa Predicantium was cited by many writers of the succeeding generations and used by many more. It was first printed about 1484 in Basel and went through several editions, the last in 1627 in Antwerp. The Tractatus iuris was also printed twice and survives in more than two dozen manuscripts. The Summa is frequently mined by modern scholars in search of literary analogues and materials for social history.
Bromyard's four surviving works run to 1.75 million words. Five lost works are also known from early bibiographers and from cross-references in the surviving works; they probably brought his total production to between 2.5 and 3 million words.
- Summa Predicantium
- Part 1, printed Venice, 1586, at Internet Archive: https://archive.org/details/JohnBromyardSummaPraedicantiumParsPrima1586.
- Part 2, printed Venice, 1586, at Internet Archive: https://archive.org/details/JohnBromyardSummaPraedicantiumParsSecunda1586.
- Tractatus iuris (Opus trivium)
- Binkley, Peter (1995). John Bromyard and the Hereford Dominicans. In Jan Willem Drijvers and A. A. MacDonald (Eds), Centres of Learning: Learning and Location in Pre-Modern Europe and the Near East, pp. 255–264. ISBN 90-04-10193-4
- Bromyard, Johannes (1518). "Summa Praedicantium." Apud Anton Koberger, Nuremberg.
- Owst, Gerald Robert (1966). Literature and pulpit in medieval England, 2nd ed. rev. ISBN 0-7661-6499-3
- Karras, Ruth Mazo (1992). "Gendered Sin and Misogyny in John of Bromyard's "Summa Predicantium". Traditio 47, pp. 233–57.
- Walls, Keith (2007) John Bromyard on church and state: the Summe Predicantium and early fourteenth-century England; a Dominican's books and guide for preachers. Market Weighton : Clayton-Thorpe Publications ISBN 978-1-904446-11-8